Can You Use Hot Tap Water for Cooking?
In many homes, the easiest way to start cooking—boiling water for pasta, warming tea, or rinsing produce—is to turn on the hot tap. But is that actually safe? In most situations, hot tap water is acceptable for cooking. However, a few plumbing and water-system factors can make cold water a safer default for drinking.
Hot water safety is largely determined by what happens inside your home between the water main and the faucet. Unlike drinking water, cooking typically involves heating the water to high temperatures, which can reduce the risk from many microbial contaminants. Still, heating does not remove certain chemical contaminants, so the type of issue matters.
Lead and pipe materials matter most
If your home has older plumbing—such as lead service lines, lead solder, or lead-containing components—water can pick up metals as it sits in pipes. Using hot water immediately after it has be ... Read more »

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